So called tutelary, guardian, patron, or protector deities are common in religious history. They were typically devoted to a place or a craftmanship. For instance, Ullr was a Norse god of archery. Lohasur Devi is the goddess of blacksmithing in India. Hestia was the Greek goddess of hearth and home. Fornax was Roman goddess of ovens (bread). Hehsui-no-kami is the Japanese kitchen goddess. Still today, the goddess Caissa is regarded as the patron of chess. In ancient times, each town had one or more tutelary deities. But we still keep to tradition. For instance, St Erik is the patron saint of Stockholm.

So who is the patron deity of vaping? Of course, I don't really mean it in the religious sense. It's more of keeping with tradition. The Celts would certainly have selected a guardian deity of vaping.
/S.

Nicodemus said, "I spake to the elders, and the scribes, and priests and physicians, and all the
multitude of the people, in their assembly; What is it ye would do with this device?
It is a device that hath wrought many useful and glorious miracles, such as no device on earth
ever wrought before, nor will ever work. Let it be, and do it no harm; if it cometh from God,
his miracles, (his miraculous cures) will continue; but if from men, they will come to nought."

Could a name be derived from Latin vapor? Vapidus isn't good because it means something vapid.

How about Vaporinus, then? But not Vapirina, since it means "either an over perfumed drag queen or a smelly/skanky homosexual." (Urban Dictionary)

I suggest Vaporinus. However, it's a new deity that must be designed. This is nothing new. For instance, the ancient Egyptian god Serapis is a deliberate design that served to syncretize Greek and Egyptian culture.
/S.